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Register a new userStudy of some Productive Properties on some Broiler Strains in Syria
دراسة بعض المواصفات الإنتاجية لبعض هجن الفروج الموجودة في سورية
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Added by
Aِl-Baath University ورقة بحثية
Publication date
2016
fields
Animal Production
and research's language is
العربية
Authors
مازن مسوح( باحث )
Created by
Shamra Editor
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أجريت هذه التجربة لمقارنة إنتاجية بعض الهجن التجارية ( هبرد, شايفر و روص ) الموجودة في سورية كسرعة النمو و الوزن الحي و معامل التحويل الغذائي و أوزان الذبائح, و بعض أجزاء الذبيحة.
The current investigation was conducted to study some productive properties( body weight, body weight gain, feed intake, feed conversion ratio, carcass composition, and carcass cuts ) on some broiler strains in Syria ( Ross, Hubbard, and Shefer ).
References used
Ajayi, F.O., Ayorinde, K.L.( 2000 ). Effect of sex on some growth criteria in Cobb broiler strain. . Proceeding of the 5th Annual Conference of Animal Science Association of Nigeria.49: 5-52
Amao, S.R., Akinokun, O., Ojedapo, L.O., Adedeji, T.A., Sodeinde, F.G. ( 2009 ). Evaluation of genetic variabilities of two strains of finisher broiler chickens in derived savanna environment of Nigeria. . Proceeding of the 14th Annual Conference of Animal Science Association of Nigeria, Lautech. Ogbomoso.14: 20-100
AOAC. 1991- Association of official chemists , official methods of analysis 31th ed, published, the A.O.A.C Washinghton, D.C
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This study was conducted in the Agricultural college, Damascus university
during the period from March 1ST until the beginning of July 2001 to determine
some productive parameters in local Syrian female rabbits.
Seventy six adult females and twelv
e bucks from the local rabbits were used
in the present study. These animals were divided according to their color into
five groups (6 females each). The colors were white, black, white and black ,
red, gray and one group (7 female) of brown color. The animals were housed
individually in cages. The females of each group were randomly bred with tow
bucks. The parameters studied were: conception rate, gestation period and
litter size at birth, 7 days, weaning (28 days), 56 days and at the Age of 84 days.
Antimicrobial compounds have been used for decades in poultry diets to increase
performance and decrease morbidity particularly in broiler chickens. However, consumer
pressure related to the potential development of antibiotic-resistant bacteria ha
s resulted in
the development of non-antibiotic feed additives that may also improve broiler erformance.
In recent years, aromatic plants and their extracts have received attention as growth and
health promoters. Such products have several advantages over commonly used commercial
antibiotics since they are residue free and they are also, generally recognized as safe and
commonly used items in the food industry. The antimicrobial properties of medical plants
and their extracts have been widely reported because they consist of many active
ompounds such as carvacrol, eugenol,which partition lipids in the bacterial cell wall and
mitochondria, disturbing the structures and rendering them more permeable.
Generally,medical plants are slightly more active against Gram-positive than Gramnegative
bacteria. Medical plants are well known for their antioxidant activity and show a
considerable effect on increasing the antioxidant capacity of chicken meat because they
consist of many of active compounds such as tocopherol, carvacrol. Spices or their active
principles have been reported to stimulate digestive secretions such as lipase, amylase and
proteases.because they consist of many active compounds such as anothol, eugenol.
Variable effects of medical plants and their extracts on the productive performance of
broiler have been reported. The majority of experimental results indicate improved body
weight gain or final body weight and feed conversion ratio.
The research was carried out at Tal Hedya Research Center in Aleppo, General
Commission for Agriculture Scientific Research (GCSAR), Syria, during 2011
and 2012 seasons. Seven genotypes of cotton were used, and complete diallel
hybridization was m
ade to study general and specific combining ability of some
productivity traits (sympodial branch number, actual boll number and seed cotton
yield). General combining ability (GCA) indicated that the parental genotype
Cherpan432 had a high significant GCA for sympodial branch number and actual
boll number, but the parents Aleppo118 and Deir El-Zour22 had the high GCA for
seed cotton yield. This is a clear indication that these parental genotypes had the
largest number of additive genes action, which plays important role in the inheritance
of the above-mentioned traits. The estimation of SCA values showed favorite and
high significant values in many hybrids resulted from parents, which had highly
significant GCA, which means that the gene action type is (additive x additive), and
this refers that these hybrids possessing the largest number of additive genes. High
heritability broad sense refers to importance of genetic variance in the inheritance of
all characters, but heritability in narrow sense values were low in general, indicating
the importance of dominance and epistasis genes in the inheritance. According to
this result it is recommended to follow the cross method for improvement of the
studied traits.
This research carried out in the Video Center for Research on Animal Production of
the Faculty of Agriculture at Tishreen University with the beginning of the summer of
2010 in order to study the possibility of improving the performance of broiler
chickens
under the conditions of the coastal area and increase economic returns.
Search Results showed that the addition of black bean and thyme powder by 0.5% to a
low-energy diet led to increased average live weight of age (9-28) days totaled 864.9 g
G3)) compared to the control (without the addition), which amounted to an average live
weight has 850.7) g) of the same age
FCR feed conversion ratio stood at 2.63 at the group G1, compared with 1.89 when the
Control CSearch results also showed that the addition of 0.25% of the black bean and
thyme powder led to the live weight increase of 848.6, compared with 670.7 members G1)
g) FCR feed conversion ratio stood at 1.96 at the G4 Group added (0.25% of the black
bean powder and thyme), compared with 2.63 at the G1 group.
The research was carried out using 1728 broiler chicks (shifer starbro
hybrid), They were divided into eight groups, each one consists of three
replicates with 72 birds in every repetition .The birds of all repetitions were
fattened until 49 days
in separate pen of open type walk ,and on deepbedplate
.All conditions of placement, rearing and feeding were the same for all birds of
repitition in different groups.
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